Thickness Of Plywood For Subfloor

Is 1 2 plywood subfloor acceptable when strip oak flooring is going on top.

Thickness of plywood for subfloor. Plywood is usually used as subfloor today. I m pulling up damaged 1 2 plywood subfloor in 1960 s house. For joists spaced more than 19 2 inches on center the minimum thickness for plywood is 7 8 inch and for osb 1 inch. Is there a code or minimual thickness for subfloors.

Plywood is the most common type of subflooring. The thickness of plywood panels in a subfloor is regulated by the spacing of the joists. Subfloor holds up all of the above layers of flooring as well as everything in your house people dogs cats pianos furniture. A subfloor is a wooden structural substrate to which durable finished flooring is attached.

The thickness needed for subflooring depends on the type of floor that will go on top and the primary purpose for the subfloor. The subfloors need to be thicker. For joist spacing of more than 16 inches up to 19 2 inches on center the minimum thickness for both plywood and osb is 3 4 inch. Typically made of plywood or osb and ranging in thickness from 19 32 to 1 1 8 thick the subfloor is truly structural second only to joists in this respect.

There are many types sizes and configurations of plywood. This number is known as a span rating. When installing a plywood subfloor on top of the slab at grade.